Home / 105,043.07-157,564.53-31,171.07

Finding the Fourth Proportional to 105,043.07, 157,564.53 and 31,171.07

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Solution

The fourth proportional to 105,043.07, 157,564.53 and 31,171.07 is: 46,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,043.07 : 157,564.53 = 31,171.07 : x
  2. Step 2: Convert to fraction form
    105,043.07/157,564.53 = 31,171.07/x
  3. Step 3: Cross multiply
    105,043.07x = 157,564.53 × 31,171.07
  4. Step 4: Simplify right side
    105,043.07x = 4,911,454,838.29
  5. Step 5: Solve for x
    x = 4,911,454,838.29/105,043.07
  6. Step 6: Final answer
    x = 46,756.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.